Trying to operate beyond the limiting intensity would create unwanted nonlinear effects in components of the laser, impairing the beam quality and even damaging the components. 如果嘗試在極限強度之上運轉，雷射元件便會(huì )產(chǎn)生不當的非線(xiàn)性效應，輕微則降低光束品質(zhì)，嚴重甚至會(huì )損壞元件。
The effect of the crack eccentricity ratio on the stress intensity factor and the ultimate tensile strength for cracked ductile plates was investigated in this paper. 摘要疲勞裂紋對船舶結構強度具有不可忽視的削弱作用，在過(guò)去的研究中，主要從斷裂力學(xué)的角度對疲勞裂紋應力場(chǎng)進(jìn)行分析，而對于靜態(tài)裂紋板的極限強度的探討相對較少。
